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Sorry - I worded the question incorrectly. It should read: Why would it be LESS stressful to take a yeast from 70F directly to 50F compared to 70F to 60F and then lower to 50F over 12-18 hours?

They come in little white boxes. Yours were probably old stock or surplus - boxes get lost/damaged. If they look new, I would not worry about it. You got a great deal.

Why would it be more stressful to take a yeast from 70F directly to 50F compared to 70F to 60F and then lower to 50F over 12-18 hours?

Did you ground the enclosure itself? Your grounds are all going to a terminal strip but I don't see that the enclosure itself is grounded.

I have bought new Crydom's for less than $10. If you are patient, you can get great deals on Ebay. Surplus, old stock, etc. I bought some for spares that looked about 20 years old but were still "new in the box". I have never used them because I have never had one go bad. When you think...

I routinely pitch lager yeast in 60F wort and then chill to 50F which takes less than 12 hours (30 gallon batch). Some lager strains do not produce much diacetyl. I use wyeast 2206 and almost never do a diacetyl rest. Other lager strains require a diacetyl rest. I usually just let my lagers...

I am not getting into this deliberation. However, IMHO, this is a very wise statement:

I thought you had it in front of you! Sorry for being a smart ass!

3 is positive - that is why it is labeled with a + sign. Crydom has an excellent technical library on their website. Here are two links: http://www.crydom.com/en/tech/installation-sheets/is_s1ac.pdf http://www.crydom.com/en/tech/tips/selecting%20a%20solid%20state%20relay.pdf

You need something like this: http://www.ebay.com/itm/March-pump-AC-5C-MD-115v-1020-gph-Replacement-pump-for-Cruisair-PMA1000-/162403597588?hash=item25d0023d14:g:ThIAAOxyfSpSRtgn

I could be wrong but your contactors are designed to accept the 10 gauge wire without any connector.

15 gal

I went the 20 gallon route. Just make sure you put the element low enough that it is covered with a 5 gallon batch.

I have used the same Crydom SSRs in my system for over 8 years. My approach has always been to buy name brand industrial components for my panel. If you are patient, you can get quality stuff on Ebay for very reasonable prices. I have had good luck with used components - I have bought several...

There are plenty of new ones available as well but you will be paying significantly more.

Buy a Crydom D2440 or D2450 off ebay. Something like this: http://www.ebay.com/itm/WHOLESALE-LIQUIDATION-CRYDOM-SOLID-STATE-RELAY-D2440-LOT-OF-4-/201805599420?hash=item2efc8d12bc:g:QFsAAOSw4DJYlLTe

Some PIDs will not work without a temperature probe but in manual mode the probe does not have to be measuring the wort. You could measure your rectal temp while you are boiling your wort. You could replace your analog thermometer with the temp probe (some can be immersed but some need a...

For the boil, most people use the PID in manual mode which is typically expressed in percent power. The thermocouple doesn't really do anything but measure the temp while the PID is in manual mode.

Yes 10 gauge from panel to elements is ok if you have 30 amp breaker or fuses in the panel.

Actually, they wouldn't have been in series which is the problem. I contemplated exactly what you proposed when I read that spa panels had room for extra breakers. But, unfortunately, it won't work.